6533b871fe1ef96bd12d23a2

RESEARCH PRODUCT

Experimental Check of the Gerasimov-Drell-Hearn Sum Rule for H1

H. HolvoetF. FrommbergerH. DutzR. LeukelG. ZeitlerG. TamasJ. NaumannBob LannoyJ. KrimmerE. RadtkeM. GodoP. GrabmayrM. SauerT PinelliR. Van De VyverR. KondratievAnton12 GiselaWolfgang HillertN. D'hoseP. JenneweinKurt HansenS AltieriJ. AhrensMartin SchumacherH. J. ArendsA. BockJrm AnnandB. KielW. Von DrachenfelsA. BraghieriS. HasegawaL. Van HoorebekeA. PanzeriG. ReicherzK. HelbingJ. HarmsenAndy ThomasW. MeyerT. RostomyanI. PreobrajenskiF. ZapadtkaNaoaki HorikawaFrank KleinM. LangD. MenzeR. BeckCh. RohlofW. WeihofenV. LisinSt. GoertzE. HeidThilo MichelC. BradtkeTakahiro IwataP. PedroniB. SchochT. Speckner

subject

PhysicsRange (particle radiation)PhotonProton010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryGeneral Physics and AstronomyPhoton energy01 natural sciencesNuclear physicsRegge theory0103 physical sciencesHigh Energy Physics::ExperimentSum rule in quantum mechanicsNuclear Experiment010306 general physicsAstrophysics::Galaxy Astrophysics

description

For the first time we checked the fundamental Gerasimov-Drell-Hearn (GDH) sum rule for the proton experimentally in the photon energy range from 0.2-2.9 GeV with the tagged photon facilities at MAMI (Mainz) and ELSA (Bonn). New data of the doubly polarized total cross section difference are presented in the energy range from 1.6 to 2.9 GeV. The contribution to the GDH integral from 0.2-2.9 GeV yields [254+/-5(stat)+/-12(syst)] microb with negative contributions in the Regge regime at photon energies above 2.1 GeV. This trend supports the validity of the GDH sum rule.

yearjournalcountryeditionlanguage
2004-02-21Physical Review Letters
https://doi.org/10.1103/physrevlett.93.032003